Nene, V A single exon codes for the enzyme domain of a protozoan cysteine protease. [electronic resource] - The Journal of biological chemistry Oct 1990 - 18047-50 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0021-9258 Subjects--Topical Terms: Amino Acid SequenceAnimalsApicomplexa--geneticsBase SequenceBiological EvolutionCysteine Endopeptidases--geneticsExonsGenesMolecular Sequence DataPapain--geneticsProtozoan Proteins--geneticsTheileriasis